| 초록 |
The electrochemical ammonia oxidation reaction (AOR) is one of the most prominent applications for the energy and environmental crisis. Ammonia is a promising future fuel as a hydrogen carrier due to its liquid phase at ambient conditions. It also has been used for wastewater remediation and electrochemical sensor which can be great for solving environmental problems. For the ammonia oxidation reaction, two mechanisms were proposed to demonstrate its reaction. The first mechanism (Oswin-Salomon) explains N2 is formed by dimerization of two Nad atoms, whereas the second mechanism (Gerischer-Maurer) postulates N2 formation promoted by two NHx ad groups (where x = 1 or 2) and Nad is a poison for this reaction. Calculation studies were employed to demonstrate the mechanism of this reaction. However, few publications are elucidating this mechanism based on experimental results. In-situ operando ATR-SEIRAS were employed to directly observe the AOR intermediates on Pt catalyst. This study executed the kinetic behavior of intermediates triggering N2 formation and Nad poisoning on Pt catalyst. |
